Alderley is a northern suburb in the City of Brisbane, Queensland, Australia. In the 2021 census, Alderley had a population of 6,748 people.

In the 2011 census, Alderley recorded a population of 5,679 people, 51.1% female and 48.9% male. The median age of the Alderley population was 33 years, 4 years below the national median of 37. 78.5% of people living in Alderley were born in Australia, compared to the national average of 69.8%; the next most common countries of birth were England 3.1%, New Zealand 2.7%, India 1.1%, Nepal 0.9%, South Africa 0.6%. 88.4% of people spoke only English at home; the next most popular languages were 1% Nepali, 0.8% Italian, 0.7% Spanish, 0.6% Korean, 0.5% Cantonese.